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Forged steel flange check valve

Forged steel flange check valve disc and valve seat sealing surface is made of cobalt-based carbide plasma spray welding with high hardness, erosion resistance and durability.

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Product Description

H41Y Forged Steel Flange Check Valve Product Profile

Forged steel flange check valve disc and valve seat sealing surface is made of cobalt-based carbide plasma spray welding with high hardness, erosion resistance and durability. It is suitable for cutting or connecting the medium on the pipeline under various working conditions of petroleum, chemical hydraulic power and thermal power station with working temperature of 600 ℃. Applicable medium: water, oil, steam, and gas, some corrosive liquids.

Working principle of H41Y forged steel flange check valve

Forged steel flange check valve disc and valve seat sealing surface adopts iron-based alloy or stellite (Stelite) cobalt-based hard alloy surfacing surface into wear resistance, high temperature resistance, corrosion resistance, good abrasion resistance and long service life. Stainless steel pin and valve to connect the use of built-in structure-excellent performance-more reliable sealing. Products are widely used in petroleum, chemical, pharmaceutical, electric power industry and other working conditions of the pipeline anti-media backflow effect. Applicable medium for water, oil, steam, gas and some corrosive liquid medium.

H41Y forged steel flange check valve product features

1. The guide sleeve of the upper cavity of the hard alloy valve body is made of stainless steel to ensure the flexible movement of the valve disc.

2, valve and valve seat sealing surface using cobalt base carbide plasma spray welding and high hardness, erosion resistance, durable.

3. Advanced pressure seal design and high purity graphite gasket ring to ensure high airtightness.

4. The valve cavity adopts pressure self-tightening sealing structure, and the higher the pressure of the cavity, the better the sealing performance

5. The valve flap rotates around the pin shaft outside the valve seat to reduce the violent impact when closing.

Application specification

1. Design and manufacture: ASME/ANSIB16.34;API602;JB/T77462; Structure length: ASME/ANSIB16.10;GB/T12221GB/T91133. Flange end size: ASME/ANSIB16.5;JB/T82.1 ~ 82.2HG/T20592A, structural features: B .C; Spring lifting; Piston lifting or swing type

2. Main material: A105;LF2;F5;F11;F22:F304;F316;F304L;F316L6; Valve inspection and test: API598;GB/T13927

Standard Material Schedule

Serial Number

Part Name

CS to ASTM

AS to ASTM

SS to ASTM

Type A105N

Type F22

Type F304(L)

Type F316(L)

1

Valve body

A105N

A182 F22

A182 F304(L)

A182 F316(L)

2

Nameplate

SS

3

Disc

A276420

A276304

A276304(L)

A276316(L)

4

Bonnet

A105N

A182 F22

A182 F304(L)

A182 F316(L)

5

Gasket

316 clip flexible graphite

316 clamp PTFE

6

Bolt

A193 B7

A193 B16

A193 B8(M)

A193 B8(M

Applicable media

Water, steam, oil, etc.

Water, steam, oil, etc.

Nitric acid, acetic acid, etc

Applicable temperature

-29 ℃ ~ 425 ℃

-29 ℃ ~ 550 ℃

-29 ℃ ~ 200 ℃

CS = carbon steel; AS = alloy steel; SS = stainless steel.

 

NPS(in)

1/2

3/4

1

11/4

11/2

2

DN(mm)

15

20

25

32

40

50

d (Full bore)

13

18

24

29

36.5

46.5

L

150 pounds Class

108

117

127

140

165

203

300 pounds Class

152

178

216

229

241

267

600 pounds Class

165

190

216

229

241

292

PN1.6~4.0

130

150

160

180

200

230

PN6.4~10.0

165

190

216

229

241

292

H

Lifting lift

61

78

84

103

118

130

Enable Swing

61

78

84

101

120

1330

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